This trailer comes from an old Official Playstation Magazine demo disc. There are lots of early elements, including a different logo, the presence of the Crash 1 HUD, alternate routes and the regular spinning animation with the jet-pack. It also shows footage of an early version of Sewer or Later.

Kudos to Keiji Dragon for the trailer and information.

Logo

(contributed by Keiji Dragon)

An old version of the logo, which uses different colors. You can also notice the old Universal Interactive Studios logo.

Space Oddballs

(contributed by Keiji Dragon)

The first two screenshots show removed areas.

The third screenshot shows Crash using his normal spinning animation. In the final version, he has a new one for when he's using the jet-pack.